In this article the author studies the place and the role of social philosophy in the architecture of the social sciences and humanities. The article focuses on the relationship between social philosophy, theory of society, theoretical sociology and social ethics. Based upon the application of the concept of paradigm in philosophy, the author shows key trends of the development of social sciences and humanities: the turn from the philosophy of conscience to the communication philosophy and the “rehabilitation of the practical (...) philosophy”. In line with these trends, practical discourse philosophy is now playing the central role in the structure of the social sciences and humanities, the author says. By making a distinction between normative and descriptive dimensions of the social sciences and humanities, the author emphasizes the issue of their normative foundation and their moral and ethical re-orientation. The article analyzes discourse as an argumentative practice of founding social norms and values and as a meta-institution legitimizing social institutions. According to this approach, the social philosophy is considered as a meta-theory of social sciences, which include general social theory and theories of social systems. In this context, practical dis- course philosophy is playing a fundamental role for legitimizing specific social institutions. Social ethics also plays an important role, as it complements individual ethics, creating a system of institutional ethics, i.e. of political ethics, economic ethics, ethics of science and technology, environmental ethics. In this architectonics, social responsibility gets a new meaning, incorporating individual responsibility. Social responsibility is not an anonymous responsibility that neglects the individual responsibility, but a common responsibility implemented according to certain rules and procedures and creating the possibility to solve current problems of the globalized humanity. (shrink)